Adjustable dimmer.



E. W. BRANDQUST. AD'JUSTABLEDIMMER. APPLICATION FILED NOV. 16. 1915.

Lrggr, Patented Apr. 4,1916.

WIM/8858 A TTHNEVS ERIC W. BRANDQUL'ST ,`OF ORNGE, NEW II'ERSJETv ADJUSTABLE murrine.

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Spccation of Letters Patent.

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Application filed November 16, 1915. lSerial No. 61,768,

To'aZZ wlw-m a may conce/m.'

Beit known that I, Eine YV. BnANDQUIs'r, a'subject of the Kingof Sweden, and a res1- dent of Orange, in the county of Essex and' v 5 State of New Jersey, have invented a new and improved Adjustable Dimmer, of which the following is a full, clear, and exact" description.

This invention vrelates to diniiners for 10 lamps vandl particularly to an improved construction which may be readily applied and removed.

for lamps especially of the automobile type,

15 which may be quickly applied and removed A further object in View is to provide a l bodily removable dimmer formed with :xd-1` justable sections whereby part of the lamp may be dimmedand the remaining part left uncovered.

In the accompanying drawings :-Figure l is a side-view of a lamp'with certain 325- parts broken away for disclosing an embodiment of the invention; Fig. 2 is a plan View on an enlarged scale of a dirnincr embodying the invention; Fig. 3 is e fragmentary sectional view through Fig. .3@ 2 on line 3-3, the Isame being shown on a slightly enlargedscale to that shown in Fig. 2;, Fig. 4 is a transverse vertical section through the front part of a lamp disclosing a slightly modified form of the in- 3,5 vention to that shown lin Fig. 2; Fig. 5 is a plan vietv of one of the sections of the dimmer shown in Fig. 4. Referring to the accompanying drawing by numerals, 1 indicates the' lamp, which te lamp nr-ey be of any desired construction and which -is provided with the usual door (not shown). Arranged to it in" the lamp, as shown in Fig. l, is a dimmer 2, which dininier is held in place by the friction of ceras tain parts, namely, the springs 3 and 4 which springs'resiliently press against the sidesof-the lamp, as shown in Fig. 4l. The springs With an aperture through Which a reduced se section 5 of the cross bar 6 passes, which reduced section is upset or riveted -so as to .hold the springspermanently and rigidly in' place. The springs are preferably construeted of some high gradematerial, while es the cross bar 6 may be mede ci cheaper ma terial and tiattened at the center tor producm l i Ametal il desired, so The obiect in View is toV roilde a dimmer( 3 and 4 are preferably 'providednig formed With an aperture 8 through which the pinA or bolt 9 passes. rlhe holt 9 is provided Withy a heed 10-ot any stumble structurel and a threaded portion Ill ior receiving the nut 12...'The bar G and springs 3 and el act as a supporting har for holding igigj an enlarged bearing Y, said bearing be Vthe bolt S) in position and also the plates 1.3

and let in position, said plates being olfeoine partially opaque or translucent material.

' The plates i3 and liinuy be in'ade from as to shut out .all of 'the light, or may be made from mica, Celluloid or other suitable material. When inadei'roni mica the saine is frosted in sonne suitable way for making the niica.` translucent, and wheny made troni Celluloid. or similar material coloring matter is preferably used for producing the translucent elect. is shown in F ig. 2, the plates i3 and lei ure slightly more than a heli" disk so that 'the entire light may be shutout' or dinnned, or if desired a certain part dimmed Whilethe remaining part is left uncovered,

In Figs. and e `will be se n a slightly' modified forni of the invention in which e plurality of sections i5 are proyided, said sections being formedwith an extension i6 having an aperture vi7 lthrough which the bolt 9 is arranged topass. TWhen the tions 15 are adjusted as shown in ldig. #l and the nut '12 tightened the light will be entirely shut oli so that the -aniount oi? light allowed to penetrate Will be determined by the degree of opaqueness of.' the sections i5. The nut 12 is intended to loclr.. the platesi and let 'in any adjusted position in a inanner similar to the Way the sections l5 are locked in their'adjusted position.

lt will be observed that a supporting iframe formed by members 3, Ll and G will adapt itself to slightly diiterent sized lamps and may be quiclrly applied and removed et any time While always allowing a quick and easy adjustment of thediniming It will also be observed that the construe-- tion does not require any change in the lamp.

What I claim is:

1r ln a dimmer-of the character described, a dimming plate, and a bar extending across. the plate for supporting the plate in a lamp, and a spring at. each end of said'har for holding the bar anc plate carried thereby 'l in'position.

2. ln a dimmer ci the character described,

Fil

, formed with apertures theretl'irough, said bar being also formed with an aperture therethrough, and .a bolt extending through said apertures for supporting and clamping said plates in any desired adjusted positional' 5. A dimmer, comprising a supporting frame adapted to be bodily applied and reiinoved, said frame comprising resilient supporting springs and a transverse bariV connected thereto, said transverse bar having an aperture therein, a plurality Lof adjustable plates having apertures therein, a bolt extending through the apertures in the plates and the aperture in said bar for connecting` the plates to said bar and for clamping the plates in any desired adjusted positionjso as to obscure or cover any part of thevxlight of the lamp to which the device is applied.

(i. In a diinnier of the character described,

' a cross bar, a pair of springs connected to said cross bar adjacent the ends thereof, said springs being arranged to frictionally yengage the casing` of a lamp for supporting the 'cross bar, a pluralityV of adjustable fdiinining plates, and means for clamping said dimming plates to said cross bar.

In testimony whereof I have signed my alanie to this specification in the presence of two subscribing witnesses.

ERIC XV. BRANDQUIST.

Witnesses:

A. L. KrrCI-HN, PniLiP D, RoLLHAUs. 

